To 17 ports; the busiest crossings are to Kaub (10 minutes, about four times a day, early April to mid-October), Oberwesel (20 minutes, about four times a day, early April to mid-October), St. Goar (40 minutes, about four times a day, early April to mid-October), St. Goarshausen (45 minutes, about four times a day, early April to mid-October), Assmannshausen (an hour, about four times a day, early April to mid-October), Bingen (an hour and a half, about four times a day, early April to mid-October), Rüdesheim (1 hour 45 minutes, about four times a day, early April to mid-October) and Lorch (10 minutes, about three times a day, early April to mid-October).